{"uid":"cap_BZmaAu7k8v_t0z0cg1T9d","slug":"changelog-state-api-huggingface-change-history-9e76bb71","name":"Changelog State API – HuggingFace Change History","description":"Detected changelog update history for one tracked vendor.","url":"https://changelog-state-api.replit.app/api/monitors/huggingface/changes","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object","required":["slug"],"properties":{"slug":{"type":"string","pattern":"^[a-z0-9][a-z0-9-]*$","maxLength":64,"minLength":1,"description":"Vendor slug, lowercase alphanumeric with dashes."}}},"queryParams":{"type":"object","properties":{"type":{"enum":["new_release","version_changed","date_changed","title_changed","breaking_signal"],"type":"string","description":"Restrict to a single change type."},"limit":{"type":"integer","default":50,"maximum":200,"minimum":1,"description":"Maximum number of change rows to return."},"since":{"type":"string","format":"date-time","description":"Only return changes detected at or after this instant."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"enum":["json"],"type":"string"},"example":{"type":"object"}},"description":"Detected changelog update history (paid)"}},"description":"Call shape for GET /api/monitors/{slug}/changes."},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_h5o_v7khLJtCxyAY3JT4w","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns detected changelog update history (new releases, version changes, breaking signals, etc.) for the HuggingFace vendor track.","exampleAgentPrompt":"Pull the last 50 detected changelog changes for HuggingFace, filtering only for new_release events since January 1, 2025.","exampleUseCases":[{"title":"Breaking change alert for HuggingFace","prompt":"Check if there have been any breaking signals detected in HuggingFace's changelog in the last 30 days — show me up to 20 results."},{"title":"Weekly release digest for HuggingFace","prompt":"Get me all new_release changelog events detected for HuggingFace since last Monday, up to 100 entries, so I can review what shipped this week."},{"title":"Version drift monitoring for AI stack","prompt":"Have there been any version_changed or date_changed events in HuggingFace's changelog since March 1, 2025? I need to know if anything in our dependencies might have shifted."}],"resultDescription":"A JSON array of changelog change records for the HuggingFace vendor, each including the detected change type (e.g. new_release, version_changed, breaking_signal), the timestamp when the change was detected, and relevant metadata such as release title or version string. Results are ordered by detection time and can be filtered and paginated.","failureModes":["Invalid or unrecognized vendor slug returns an error or empty result","since parameter with malformed datetime format causes a 400 validation error","limit exceeding 200 returns a validation error","Payment not attached or insufficient USDC balance causes a 402 Payment Required response","Vendor not currently tracked returns an empty changes array"],"whenToPreferThis":"Choose this endpoint when you need a historical log of detected changelog changes for HuggingFace specifically — especially when you want to filter by change type (new_release, breaking_signal, etc.) or query changes since a specific point in time. Prefer this over release-listing endpoints when you care about the detection event itself (when a change was noticed) rather than structured release metadata.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T17:52:21.720Z","isFirstParty":false}